Electro-erosive processing apparatus

Details Electro-erosive processing apparatus Electro-erosive processing apparatus

1981-02-13

1984-12-11

Paschall, M. H.

Electric heating

Metal heating

Cutting or disintegrating

219 69G, B23P 108

Patent

active

044880294

ABSTRACT:
In electro-erosive machining apparatuses with multidimensional relative motion between a tool-electrode and a workpiece electrode, a simple and adaptable control is provided for these relative operating movements, with a superimposed shaping-limiting control and subordinated cyclic repetitive oblique erosion. In this connection, the tool-feed is limited, within individual oblique-erosion cycles, by achieving a predetermined shaping envelope-surface. The apparatus comprises two separate coordinating-function-transmitters by means of which two operating movements, at an angle to each other, are each determinable according to a resultant relative operating movement between the tool and the workpiece, one being used for shaping-limiting control and the other for oblique erosion. Initiation of the consecutive oblique-erosion cycles is effected by means of a repetition-circuit as a function of a rated-value/actual-value approximation of the shaping-limiting control.

REFERENCES:
patent: 3849624 (1974-11-01), Dulebohn et al.
patent: 4263494 (1981-04-01), Martin
patent: 4310742 (1982-01-01), Pfau
patent: 4314133 (1982-02-01), Pfau et al.

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